Machine for treating rubber and other heavy plastic material



, F.H.BANBURY. MACHINE FOR TREATING RUBBER AND OTHER HEAVY PLASTHI MATERIAL- APPLICATION FILED SEP T.4, i920. 1,390,976, PatentedSept. 2'0, 1921 \sylllllllllld l A vation.

rmmmy H. BANBURY, 0F ANSONIA, CO

- IRON FOUNDRY, O1 DERBY, CONNECTICUT,

a conrona'rron.

AID OTHER HEAT KY PLASTIC MATERIAL.

NNECTICUT, ASSIGNOR TO BIBIINGHAK a neck 4 in which weight 5 is arranged. Inone side of IACHINE FOR TREATING 3113B Application fled topteniber To all whom it may concern:

Be it known that 1, Forum}: H. BAH- BURY, a subject of the King of Great 'Britain, residing at Ansonia, in the count of, New Haven and State of Connecticut, ave invented a new and useful Improvement in Machines for Treating Rubberand other Heavy Plastic Material; and I do hereby declare the following, when taken in connection with the accompanying drawing and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this application, and represents a broken sectional view of a machine for treating rubber and other heavy plastic material constructed in accordance with this invention, showing the hopper in side ele- This invention relates to an improvement in machines for treating rubber and other heavy plastic material, of the t pe shown and described in United States atent No. 1,200,070, October 3d, 1916.

In treating rubber or other heavy plastic material, and' articularly rubber, certain owders and o ier material are introduced rom time to time according to the material being treated, and the object of this invention is to provide automatic means for feed-. ing such powders; and the invention, consists in the construction as hereinafter described and particularly recited in the claim.

In carrying out my invention, I employ that shown i the pata casing 2 similar to cut above referred to, in whlch a rotor 3 13 being provided with mounted, the casing I a vertically movable the neck and approximately in line with the weight when in its depressed position, I form a hole 6 to receive a threaded nipple 7 of a hopper 8. This nipple may be formed Jpeotlcation or Letters 2mm. t nt t, 20, 2

4, 1920. Serial 110. 403,330. 4

separate from the hopper and provided with a flange 9 coupled wlth a flange 10 at the lower end of the hopper and so that powderor other material placed in the hopper mayspass into the casing.

j the material is treated in the casing, it lumps so aS to form a mass which, turned up and down, and when the material is 1n this state, it is desirable to teed additional powder or other material. In this construction, as the weight is lifted by the mass in the casing, the hole 6 in the neck is o ened allowing powder'inthe hopper 8 to fal into the caslng to treated. When the weight descends, hole is closed or greatly restricted in area and so as to shut off or restrain the flow of material,-the hole being opened from time to time as the weight is lifted. The feeding of the powders or other material, there fore,.is practically automatic, as the powders 'are fed when the mass being treated reaches the .state that it will lift the weight, indicatin that it is necessary for material to be to I claimz': I

In a machine of the class specified, the .combination with a casing formed with a neck of a verticallymovable said neck. formed on one side with a hole in line with the weight when in its depressed osition, and a hopperdischarging into said liole whereby the flow of material through the hole is controlled by the weight.

In testimony whereof, I'have signed this specification in the presence of two subscribing witnesses. I,

' F; H. BANBURY.

Witnesses:

Fanonrro C. Emma, -J. Hanom Fnnm.

bemixed with themass being the I weight therein,

55 by the rotors, will cause the weight to go 

